Ключевые слова: angle, blade, circular, construction, cut, cutting, diamond, disc, disk, drill, electric, electrical, engineer, engineering, equipment, factory, flash, grind, grinder, industrial, industry, iron, light, machine, man, manual, manufacture, manufacturing, metal, mitre, people, person, power, production, protection, safety, saw, spark, sparks, steel, technical, technology, tool, treatment, welder, welding, wheel, work, worker, workshop,